removed obsolete test

tests/run/cdefkwargs.pyx

-__doc__ = u"""
-    >>> call2()
-    >>> call3()
-    >>> call4()
-"""
-
-# the calls:
-
-def call2():
-    b(1,2)
-
-def call3():
-    b(1,2,3)
-
-def call4():
-    b(1,2,3,4)
-
-# the called function:
-
-cdef b(a, b, c=1, d=2):
-    pass